Accessory Structures in Connecticut (2026)

Danbury opted out of the state's 2021 mandate requiring cities to allow accessory apartments by right, so garage or…

Bethel's zoning regulations allow one accessory apartment per lot, but only inside or attached to the principal house…

Hartford requires a zoning permit before an accessory dwelling unit is recognized, and caps its usable floor area at 50…

New Britain's accessory dwelling unit chapter bars building an ADU within twenty-four months of a new single-family…

New Haven allows one accessory dwelling unit per lot in RS-1, RS-2, RM-1, and RM-2 districts, sized 400 to 1,200 square…

Norwalk allows accessory apartments only in AAA, AA, A and B Residence Zones, and only inside single-family homes that…

Ridgefield permits one accessory dwelling unit per lot with a Zoning Permit, capped at 900 square feet (1,200 if the…

Building a Stamford ADU requires a Zoning Permit, not just a Building Permit; detached units must independently meet…

In the Town of Stratford, Connecticut, Section 4.4.2 of the Zoning Regulations allows one accessory residential…

West Hartford allows one accessory dwelling unit per one-family lot if the lot meets the zone's minimum size, the unit…

New Britain requires the owner of any property with an accessory dwelling unit to personally occupy one of the two…

In the Town of Stratford, Connecticut, Section 4.4.2 requires the principal owner, meaning an owner of at least a 50%…

Norwalk requires the property owner to live on site as a condition of keeping an accessory apartment. Under Code §…

Stamford requires the property owner to live on site before adding an accessory dwelling unit. The Zoning Regulations…

West Hartford requires that either the principal home or the accessory dwelling unit on the same lot be owner-occupied…

New Britain's zoning code allows accessory dwelling units on residential lots, but it draws a hard line at renting them…

Stamford bars every accessory dwelling unit from being used as a short-term rental, full stop. The Zoning Regulations'…

New Haven ADUs are only allowed when the property owner lives on site, and a recorded deed restriction bars ever…

In the Town of Stratford, Connecticut, Section 4.4.2.E.9 of the Zoning Regulations bars any dwelling with an accessory…

An owner who rents out a West Hartford accessory dwelling unit for income must file a sworn affidavit with the Town…

Norwalk caps every accessory apartment at 400 to 700 square feet, one bedroom, and three occupants with no more than…

A shed in Bethel is capped at 400 square feet of footprint and 16 feet in height across every residential zone, well…

Bridgeport requires a zoning compliance application before you put up a shed or other accessory building, with an $85…

A shed, garage, greenhouse or other accessory building in Bristol needs a building permit before construction, with a…

Sheds and other detached accessory buildings in Danbury's residential districts cannot exceed 15 feet in height or…

Hartford classifies a detached shed as an 'Out Building' under its zoning code, requiring a 5-foot side and rear…

In the City of Meriden, detached accessory buildings such as sheds in the R-R, S-R, R-1, R-2, R-3 and R-4 Districts…

In the City of New Britain, a shed, garage or other accessory building can't sit in a required front or side yard and…

New Haven's zoning ordinance treats an attached carport as a building projection, letting it reach into a required yard…

Norwalk keeps sheds and other accessory buildings in residence zones off the street-facing part of the lot and away…

Ridgefield lets a homeowner build one detached tool or storage shed up to 200 square feet with no Zoning Permit at all…

A carport in Stamford is regulated as an accessory structure: it must stay out of the front yard, cannot exceed one…

In the Town of Stratford, Connecticut, a detached accessory building such as a shed cannot rise above 12 feet to the…

A detached shed or accessory building in West Hartford may not exceed 15 feet in height in a rear yard, must sit at…

Converting a Stamford garage into living space that functions as a separate unit makes it an Accessory Dwelling Unit…

Connecticut law treats a tiny home on a residential lot as an "accessory apartment" under CGS 8-1a(b)(1): a separate…